/*
 * libjingle
 * Copyright 2013 Google Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#import <Foundation/Foundation.h>

// AVDI420Frame is an ObjectiveC version of cricket::VideoFrame.
@interface AVDI420Frame : NSObject

@property(nonatomic, readonly) long long timestamp;
@property(nonatomic, readonly) NSUInteger width;
@property(nonatomic, readonly) NSUInteger height;
@property(nonatomic, readonly) NSUInteger chromaWidth;
@property(nonatomic, readonly) NSUInteger chromaHeight;
@property(nonatomic, readonly) NSUInteger chromaSize;
// These can return NULL if the object is not backed by a buffer.
@property(nonatomic, readonly) const uint8_t* yPlane;
@property(nonatomic, readonly) const uint8_t* uPlane;
@property(nonatomic, readonly) const uint8_t* vPlane;
@property(nonatomic, readonly) NSInteger yPitch;
@property(nonatomic, readonly) NSInteger uPitch;
@property(nonatomic, readonly) NSInteger vPitch;

- (BOOL)makeExclusive;
- (AVDI420Frame*)copyRangex:(int)x y:(int)y w:(int)w h:(int)h;

/**
 创建一个I420Frame
 
 @param yAddress yAddress
 @param uvAddress uvAddress
 @param width 采集到的宽
 @param height 采集到的高
 @param widthDst 有效宽
 @param heightDst 有效高
 @return AVDI420Frame;
 */
+ (AVDI420Frame*)CreateFrame:(uint8_t*)yAddress  uvAddress:(uint8_t*)uvAddress width:(int)width height:(int)height widthDst:(int)widthDst heightDst:(int)heightDst;

/**
 获取拉伸之后的size

 @return size
 */
- (int)getChromeSize;


/**
 拉伸i420Frame

 @param widthDst 目标宽
 @param heightDst 目标高
 @param interpolate interpolate
 @param crop crop
 @return i420
 */
- (AVDI420Frame*)Stretch:(int)widthDst heightDst:(int)heightDst interpolate:(BOOL)interpolate crop:(BOOL)crop;

#ifndef DOXYGEN_SHOULD_SKIP_THIS
// Disallow init and don't add to documentation
- (id)init __attribute__((
    unavailable("init is not a supported initializer for this class.")));
#endif /* DOXYGEN_SHOULD_SKIP_THIS */

@end
